Self-filling fountain-pen.



H. C. BARTLETT, JR. SELF FILLING FOUNTAIN PEN.

APPLICATION FILED AUG. 2.1916.

,2 l bR900 Patented Mar. (i, 1917.

WHA/Leos HENRY c. BARTLETT, JR., or oWENsBoRo, KENTUCKY.

SELF-FILLING FOUNTAIN-PEN.

`Specification of Letters Patent.

Application filed August 2, 1916. Serial No. 112,873.

To 'all whom t may concern:

Be it known that I, HENRY C. BARTLETT, Jr., a citizen of the United States, residing at Owensboro, in the county. of Daviess, State of Kentucky, have invented a new and useful Self-Filling Fountain-Pen; and I do hereby decla-re the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved selfilling fountain pen, and an object of the invention is to provide an improved, simple and efficient device of this kind, in which practical features of construction are involved.

One of the features of the invention is to provide an ink receiving sack upon the interior of the body of the pen, in combination with a pair of elongated plates riveted together, one acting to depress the sack its full length to create a vacuum in the sack when pressure is relieved, the other being of spring material, and one end of which is connected to the Wall of the body of the pen and its other end slidablyv connected, so that when it is allowed to straighten the sack is distended, thereby drawing into the sack.

Another feature of the invention is the provision of a pivoted lever in an opening of the wall of they body to engage a notch upon the plate which is attached to the wall of the body, to hold the sack depressing plate against the sack to hold the same collapsed.

In practical fields, the details of construction may necessitate alterations falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed. l

In the drawings:-

Figure 1 is a -view in side elevation of a fountain pen constructed in accordance with the invention.

Fig. 2 is a. sectional view through the `body of the fountain pen, showing the means for collapsing the ink sack.

Fig. 3 is an enlarged detail sectional View of a portion of the wall of the body of the pen illustrating the means for collapsing the sack.

Fig. 4 is a sectional view showing the sack depressed.

Fig. 5,is a sectional view on line 5--5of Fig. 2.

Fig. 6 is a sectional view on line 6-6 of Fig. 4.

Fig. 7 is a detail perspective view of pivoted lever, and a portion of one of said plates for depressing the sack.

Fig. 8 is a plan view of one of saidy plates for depressing the ink sack.

Referring more especially to the drawings, l designates a body or barrel of the` pen, which is hollow, and 2 denotes the ink bag or sack, which is constructed of rubber or other expansible material, and is arranged on the interior of the hollow barrel or body, and is secured at one end in any suitable manner, as shown at 3. The wall of the barrel or body. has an elongated slot 4. One end of a plate orspring strip 5 is secured adjacent the inner surfaceof the wall ofthe barrel orbody by means of a rivet 6 in such wise that the spring plate or strip will extend longitudinally over the slot 4. The other end of the spring strip 5 terminates in forks 7, there being a rivet 8 extending through the space 9 betweenthe forks and secured in the wall of the barrel or body, as shown in the drawings. Riveted, as shown at 10, to the spring strip 5, is substantially thecentral portion of a substantially stiffened but spring strip 11, which,

Patented Mar. 6, 1917.

when the strip 5 is depressed, .will depress y j I or collapse the sack or bag, as shown -in- Figs. 4 and 6, and when the pressure is relieved, causing the bag or sack to 'bes the strip 11 is ldescribed as being substantially of a stiffened character, the opposite ends of the strip are slightly sprung from the strip 5, but when the strip 11 is depressed against the sack or bag, the same is flattened,

straight out, so that the full length of the sack or bag is completely depressed or collapsed. The central portion of the strip 5 on its face adjacent the slot 4 is provided with two lugs 12, between which 'a notch 13 is formed. Mounted in the slot 4 on a pin 14 (which extends transversely of the slot) is a lever 15, the end portion 16 of which 9.0,- i' come;l distended or expand, the vacuum' and engages the notch 13, thereby so bowing the strip 5 as to depress the strip 11 against the bag or sack and when so bowlng said strip, the forks 7 thereof slide relative to the head of the rivet 8, and by virtue of so mounting ythe strip 5, the same will spring back in place when pressure is relieved therefrom.

The invention having been set forth, what is claimed as new and useful isz- In a. self-filling fountain pen, the combination of a pen barrel and an ink bag or sack contained therein, of a spring strip having one end secured on the interior 4of the wall at one end of the barrel and having a sliding connection at its other end near the opposite end of the barrel, a bowed strip connected to the first strip substantially midway between its ends and having its ends relatively closer to said ink-bag than the arched portion of the bow, and means carried by the barrel and acting against the first strip to depress the bowed strip on the bag so that its ends will engage the bag previous to its body, whereby as said'means is released the bag expands and draws ink thereinto, said barrel having an elongated slot provided with a shoulder at one end, said spring strip having a notch, said means comprising a lever pivoted in the slot adapted to cam against the spring strip and engage said notch to depress the strip, said lever when closed engaging the shoulder of the slot.

ln testimony whereof I have signed my name to'this specification in the presence of two subscribing witnesses.

HENRY C. BARTLETT, JR. 

